Select the letter-cluster from among the given options that can replace the question mark (?) in the following series.
UTMD, QXIH, MBEL, IFAP, ?
Answer & explanation
Correct answer: option 3

Explanation:
UTMD, QXIH, MBEL, IFAP, ?
The logic followed here is :
U → (-4) → Q → (-4) → M → (-4) → I → (-4) → E
T → (+4) → X → (+4) → B → (+4) → F → (+4) → J
M → (-4) → I → (-4) → E → (-4) → A → (-4) → W
D → (+4) → H → (+4) → L → (+4) → P → (+4) → T
So, the letter-cluster that replaces the (?) to complete the series is "EJWT'